firmware

Firmware Update Cisco SG350

Posted by robd on January 12, 2022
Cisco / No Comments

I had to update a Cisco SG350 recently, which should have been really easy but ended up being a bit of a pain.

Here’s how I’d do it again:

  • Download the firmware:

https://www.cisco.com/c/en/us/support/switches/sg350-28-28-port-gigabit-managed-switch/model.html

  • Ignore the GUI, pretend it never existed, as best I can work out it just doesn’t work well.
  • Download a tftp software, I suggest tftpd64 as it brilliant:

https://pjo2.github.io/tftpd64/

  • Run the tftp software and point it at the firmware, make a note of the IP.
  • SSH to the switch with putty and run the following to check the version:
show ver
  • Then run this command on the switch (The IP if the IP of the tftp software):
boot system tftp://192.168.1.2/image_tesla_hybrid_2.5.8.15_release_cisco_signed.bin

  • Now reboot:
reboot
  • Once it’s rebooted, check the version, and you are done!
show ver

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